Improved mode of cleaning sheep and other skins  for tanning



V I. .s fimtvd fitatm gaunt (tlffwe.

aw M? AUGUSTE FAU AND EUGENE FAU, OF CASTRES, FRANCE.

Letters Patent N 92,179, dated July 6,1869.

IMPROVED MODE OP CLEANING-SHEEP AND OTHER SKINS EE'OR TANNING.

The Schedule referred to in these Letters Patent and making part at the lame.

To all whom it may concern several hours, then placed, one by one, on an inclined plane, and there receive blunt strokes, struck with a round iron rod, so as to detach these thistles, clot-burrs, goose-grass, or catch-weed, as much as possible. The skins are then washed in a running stream. After they have been washed, and submitted to a heating or fermentation, the unhairiug is effected either by hand, or with an iron tool known as a shaving-knife.

In lieu of this method of fleeing from burrs, which is dirty and iatigning to the workman, and burdensome, tiresome, and disagreeable tothe employer, as

well as of the above method of unbairing, which is costly and injurious to the skin, we use, with considerable advantage, the following process of washing,

freeingfrom burrs, and unhairing.

We submit woolly skins clogged with thlstles, clotburrs, or goose-grass, to a preliminary soaking in'wate We then place one or several on a cylindrical drum,

preferably of a conical shape, and movable or rotary,

water, soapy water, alkaline or other water, eitherhot or upon inclined planes, or any kind of surfaces, mov able or 'fixed, and we direct on to these skins one or several jets of water, under pressure obtained by means of a natural or an artificial fall, or of pumps worked. by any available motive-power. The result of this operation is a thorough washing, and complete extraction of all the filth, and of theforeign matters from the wool, such as thistles,clot-burrs,' bin-docks, goose-grass, or catch-weed.

\Ve remove the wool from the skins by the same means of jets of water under pressure, either pure or cold, without having recourse to theold processes of unhairing.

What we claim as our invention, and desire to secure by Letters Patent, is'

The use of jets of water,'under pressure, as we have above described, for washing, freeing from burrs, and unhairing woolly skins.

AUGUSTE FAU. EUGENE FAU,

Witnesses to signatures of A. FAU and E. FAU:

Rossrexon,

Notuire (t Castres,

Rue des Trois Rois, No, 11. Joiin GOULON, a Negnt, Rue de IHdlel de Ville,

N039, d Oaslres. 

